202120122210001 has 2 divisors, whose sum is σ = 202120122210002. Its totient is φ = 202120122210000.

The previous prime is 202120122209933. The next prime is 202120122210043. The reversal of 202120122210001 is 100012221021202.

It is a happy number.

202120122210001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 159852908457025 + 42267213752976 = 12643295^2 + 6501324^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-202120122210001 is a prime.

It is not a weakly prime, because it can be changed into another prime (202120122211001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101060061105000 + 101060061105001.

It is an arithmetic number, because the mean of its divisors is an integer number (101060061105001).

Almost surely, 2^{202120122210001} is an apocalyptic number.

It is an amenable number.

202120122210001 is a deficient number, since it is larger than the sum of its proper divisors (1).

202120122210001 is an equidigital number, since it uses as much as digits as its factorization.

202120122210001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 202120122210001 its reverse (100012221021202), we get a palindrome (302132343231203).

The spelling of 202120122210001 in words is "two hundred two trillion, one hundred twenty billion, one hundred twenty-two million, two hundred ten thousand, one".